Port Jefferson, NY Local Market Overview (Oct 2026)
Whether you need a scheduled rider policy for homeowners insurance (Jewelers Mutual, Chubb, Vault), an equitable estate division report, or independent pre-purchase verification of a loose diamond in Port Jefferson, New York, working with a credentialed gemologist (GIA GG, NAJA, or ASA) ensures your documentation is accepted by all major underwriters.
Across Port Jefferson, 7 verified showrooms along E Main St, 98 Main St, 208 Emerson St, 408 Liberty Ave provide written gemological appraisals, led by Ecolin Jewelers, Christina Fashion Handbags, Jewels By M & R Designs Inc.
Verified Showrooms in Port Jefferson, NY
#1 Verified Port Jefferson Specialist
⭐ 4.8 (48 reviews)
EC
📍 14 E Broadway, Port Jefferson, NY 11777, USA
Ecolin Jewelers is an esteemed jewelry showroom and custom design studio in Port Jefferson. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#2 Verified Port Jefferson Specialist
⭐ 4.8 (32 reviews)
CH
📍 98 Main St, Port Jefferson, NY 11777, USA
Christina Fashion Handbags is an esteemed jewelry showroom and custom design studio in Port Jefferson. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#3 Verified Port Jefferson Specialist
⭐ 4.6 (14 reviews)
JE
📍 208 Emerson St, Port Jefferson, NY 11777, USA
Discover Exquisite Jewelry at Jewels By M & R Designs Inc in Port Jefferson Welcome to Jewels By M & R Designs Inc , your premier destination for luxurious jewelry in the heart of Port Jefferson, NY . Nestled at 208 Emerson St, Port Jefferson, NY 11777, USA , our store is a treasure trove for those who appreciate the art of fine jewelry. Whether you're searching for a stunning engagement ring, a delicate necklace, or unique earrings, we have something extraordinary just for you!
Custom DesignJewelry RepairsAppraisalsCleaning & Polishing
#4 Verified Port Jefferson Specialist
⭐ 4.5 (17 reviews)
GI
📍 408 Liberty Ave, Port Jefferson, NY 11777, USA
GioGio Design is an esteemed jewelry showroom and custom design studio in Port Jefferson. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#5 Verified Port Jefferson Specialist
⭐ 4.3 (30 reviews)
SU
📍 142 E Main St, Port Jefferson, NY 11777, USA
Susan Rodgers Designs is an esteemed jewelry showroom and custom design studio in Port Jefferson. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#6 Verified Port Jefferson Specialist
⭐ 4.3 (25 reviews)
CH
📍 142 E Main St, Port Jefferson, NY 11777, USA
Chris Silver Jewelry is an esteemed jewelry showroom and custom design studio in Port Jefferson. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation
#7 Verified Port Jefferson Specialist
⭐ 4.1 (22 reviews)
EL
📍 14 E Broadway, Port Jefferson, NY 11777, USA
Elements by Lunasea is an esteemed jewelry showroom and custom design studio in Port Jefferson. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.
Fine JewelryCustom Consultation